trial-by-trial adjustments of cognitive control following errors and response conflict are altered in pediatric obsessive compulsive disorder

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ID: 146270
2012
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Abstract
Background: Impairments of cognitive control have been theorized to drive the repetitive thoughts and behaviors of obsessive compulsive disorder (OCD) from early in the course of illness. However, it remains unclear whether altered trial-by-trial adjustment of cognitive control characterizes young patients. To test this hypothesis, we determined whether trial-by-trial adjustments of cognitive control are altered in children with OCD, relative to healthy controls. Methods: Forty-eight patients with pediatric OCD and forty-eight healthy youth performed the Multi-Source Interference Task. Two types of trial-by-trial adjustments of cognitive control were examined: post-error slowing (i.e., slower responses after errors than after correct trials) and post-conflict adaptation (i.e., faster responses in high-conflict incongruent trials that are preceded by other high-conflict incongruent trials, relative to low-conflict congruent trials). Results: While healthy youth exhibited both post-error slowing and post-conflict adaptation, patients with pediatric OCD failed to exhibit either of these effects. Further analyses revealed that patients with low symptom severity showed a reversal of the post-conflict adaptation effect, whereas patients with high symptom severity did not show any post-conflict adaptation. Conclusion: Two types of trial-by-trial adjustments of cognitive control are altered in pediatric OCD. These abnormalities may serve as early markers of the illness.
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eliu2012frontierstrial-by-trial Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Yanni eLiu;William J Gehring;Daniel eWeissman;Stephan F. Taylor;Kate Dimond Fitzgerald
Journal journal of experimental psychology general
Year 2012
DOI
10.3389/fpsyt.2012.00041
URL
http://journal.frontiersin.org/Journal/10.3389/fpsyt.2012.00041/full
Keywords
cognitive control interference

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